officials have told us they have seized a fair amount of evidence in this case. among that evidence, computer hard drives, some computers, as well. they're concerned that the evidence may be too badly damaged to be able to green any sort of useful information from it but they continue to try to do that. they have discovered that he was, the shooter, 20-year-old adam lanza, he was apparently based on the evidence an avid gamer. they have also been looking at various social networking sites and does not appear as if he had a large social footprint, as well. there's no evidence right now that he was under medical treatment for any sort of psychiatric disability. they have not found any sort of medicine but they're using search warrants to try and determine whether he was at any point receiving any sort of medicine, taking any sort of medication for that and that's the latest on the investigation and what's happening right now here in newtown, as well. >> okay. craig melvin, thank you. let's bring in harvard professor, david hemmingway who says we should treat mental health as a crisis.